The 1998-1999 Pollino (Southern Apennines, Italy) seismic crisis: tomography of a sequence

被引:0
|
作者
Guerra, I
Harabaglia, P
Gervasi, A
Rosa, AB
机构
[1] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy
[2] Univ Basilicata, Dipartimento Strutture Geotecn & Geol Applicata, I-85100 Potenza, Italy
[3] Ist Nazl Geofis & Vulcanol CESIS, Grottaminarda, AV, Italy
关键词
seismic sequences; stress field evolution; Southern Apennines; Calabrian Arc; Pollino Chain;
D O I
暂无
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
In 1998-1999 a seismic sequence occurred in the Southern Apennines, after the moderate Size (m(b)=5.0) 9th September 1998 Pollino earthquake. It lasted about 14 months and was clearly localized to the sole north-west area of the main shock epicenter. Its peculiarity consisted in sudden changes of activity from a series of normal faults with Apenninic (NW-SE) trend and transfer, presumably strike slip, faults with Antiapenninic (NE-SW) and E-W trend. The complexity of the behavior and the different orientations of the activated systems suggest that the area acts as a hinge between the NW-SE trending Southern Apennines and the locally N-S trending Calabrian Arc.
引用
收藏
页码:995 / 1007
页数:13
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